Unable to get the access token getting 400 for OAUTH2.0 app

[Rohit Magar]

I have created a OAuth 2.0 app and I want this app to get the users project and ticket details.. but after I am done with the authorization url.. I am unable to get the access token..   

I am referring this doc 

OAuth 2.0 (3LO) apps (atlassian.com)

 I am stuck at this step

2. Exchange authorization code for access token

curl --request POST \ --url 'https://auth.atlassian.com/oauth/token' \ --header 'Content-Type: application/Json' \ --data '{"grant_type": "authorization_code","client_id": "YOUR_CLIENT_ID","client_secret": "YOUR_CLIENT_SECRET","code": "YOUR_AUTHORIZATION_CODE","redirect_uri": "https://YOUR_APP_CALLBACK_URL"}'

everything is they have asked.. i have added my client id and client secret.. but the Api is giving me 400

i get this as the response 

error

1. HttpErrorResponse {headers: HttpHeaders, status: 400, statusText: 'OK', url: 'https://auth.atlassian.com/oauth/token', ok: false, …}
   1. error:
      1. error: "invalid_request"
      2. error_description: "authorization_code is invalid"
      3. [[Prototype]]: Object
   2. headers: HttpHeaders {normalizedNames: Map(0), lazyUpdate: null, lazyInit: ƒ}
   3. message: "Http failure response for https://auth.atlassian.com/oauth/token: 400 OK"
   4. name: "HttpErrorResponse"
      

I did some research and some said that content-type needs to be changed.. i updated the content type to 

contentType:"application/x-www-form-urlencoded; charset=utf-8"
than i get an error that client_id cannot be empty whereas in the payload of the network tab we can still see the client id


Also they have given a point like To get a refresh token in your initial authorization flow, add offline_access to the scope parameter of the authorization URL. Once you have the refresh token, exchange it for an access token by calling the token URL

I tried this and still I didn't get any refresh token 

is that I should take another approach or what is it.. please help me out.. we have deadline for this feature to develop

[Peter Van de Voorde]

Hi @Rohit Magar ,

Welcome to the Atlassian Community.
This is very much an Atlassian Developer question and I would highly recommend for you to join the Atlassian Developer Community here: https://community.developer.atlassian.com

This community is solely focused on helping developers build apps on top of the Atlassian products and thus has a greater number of people who might be able to help you compared to the user community.

Cheers,
Peter